Upon the filing of a petition for the involuntary dissolution of a town, the superior court shall enter an order fixing the time for hearing thereon at a date not less than thirty days from date of filing. The state auditor shall give notice of the hearing by publication in a newspaper of general circulation in the county, once a week for three successive weeks, and by posting in three public places in the town, stating therein the purpose of the petition and the date and place of hearing thereon.